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. Author manuscript; available in PMC: 2010 Mar 11.
Published in final edited form as: Phys Med Biol. 2009 May 6;54(10):3083–3099. doi: 10.1088/0031-9155/54/10/008

Table 2.

% bias and % stddev at a single voxel in various tissue regions for 1000 noisy samples with LS estimation.

LS % Bias % Stddev
k1 (1/min) 1.97 21.4
Hypoxic
Tumor
k2 (1/min) 1.01 15.7
k3 (1/min) 0.97 13.5
β −1.13 27.9
Ki (1/min) 0.19 6.30

k1 (1/min) −2.92 11.5
Necrotic
Tumor
k2 (1/min) −2.05 10.7
k3 (1/min) 0.66 15.9
β 28.2 81.8
Ki (1/min) −0.80 13.3

k1 (1/min) 1.74 20.1
Normoxic
Tumor
k2 (1/min) 1.10 14.9
k3 (1/min) 0.56 42.9
β −1.04 28.2
Ki (1/min) −0.45 40.6

k1 (1/min) −1.32 13.0
Normal
Tissue
k2 (1/min) −0.91 10.3
k3 (1/min) 0.79 35.0
β 4.97 43.9
Ki (1/min) −0.65 32.6